Biggest Bed Size

Written by Ashima Yadav

Last Updated December 11, 2024

Is your bed too small to fit your entire family? Or do you just need more space while sleeping? An oversized mattress can solve your problems. While most of us are aware of the standard biggest size, that is, California king, many people are unaware that even bigger mattress sizes are available in the market. Any mattress larger than a California king is termed as an oversized mattress. There is a wide variety of options for oversized mattresses like Alaskan King, Texas King, Family beds, etc.

An oversized mattress can either be a luxury choice for you or a necessity, but no doubt, these mattresses provide a haven of comfort and good sleeping space. An oversized mattress can be anywhere between 12 to 24 inches longer and 8 to 72 inches wider than a California king mattress.

Though the idea of the biggest bed size sounds exciting, the question arises, is it for you? And if so, what size should you choose? There are a lot of factors to consider when buying an oversized mattress, like number of sleepers, bedroom dimensions, etc. In this article, we explore all the options along with the factors to consider to help you make a choice.

Oversized Bed - Biggest Bed Size

Key Takeaways:

  • An oversized mattress can be anywhere between 12 to 24 inches longer and 8 to 72 inches wider than a California king mattress.
  • The most common oversized mattresses are Alaskan King, Alberta King, Wyoming King, Texas King, and Family Bed.
  • Alaskan king is 108 inches by 108 inches and is the largest square-shaped mattress.
  • A Texas king bed, 80 inches wide by 98 inches long, is much longer than wider and perfect for tall sleepers.
  • Family beds are considered the largest and come in three different sizes: family XL, Large, and Medium.
  • The XL family bed is an astonishing 144 inches wide by 84 inches long, making it equal to two California king beds side by side.
  • Your choice of mattress will always depend on your requirements and needs; these can be broken down into various factors like bedroom size, number of sleepers, versatility, budget, etc.

The Most Popular Oversized Mattress Sizes

Comparison Image of oversized mattress sizes: Alaskan King, Alberta king, Wyoming king, Texas king, and Family beds.

Oversized mattress sizes are not as common compared to their standard counterpart and are sold by only a few retailers. However, the market is growing with the increase in demand for oversized mattresses. You might want to choose an oversized mattress because of your height, because you co-sleep with your children or pets, or because you and your partner need more space in bed. Whatever the reason might be, all these requirements would require you to choose a different size of an oversized mattress, depending on your needs. Let's take a look at some oversized mattresses along with their utility.

Alaskan King Mattress

Oversized Alaskan King Beds - Bigger than twin XL mattress, queen mattress, and standard king mattress

Named after the largest U.S. State, Alaska King is the largest square-shaped mattress available in the market. Alaskan king bed is 108 inches wide by 108 inches long, is the longest mattress size available, and is also the widest (except for the family beds). Alaska king is three feet (36 inches) wider and two feet (24 inches) longer than a Cal king and can easily fit a family, along with pets.

However, Alaskan King requires bigger bedrooms (at least 16 feet by 16 feet) and sturdy bed frames. It might also be difficult to shop for them because they are not widely made and might even require you to get them custom-made.

Alberta King Mattress

Alberta king bed

Alberta King is the second largest square-shaped mattress, only a foot (12 inches) smaller than Alaskan King in both width and length. This 96-inch wide and long mattress size is suitable for people who want to enjoy the benefits of Alaskan King but want the bed to fit in a slightly smaller room.

Alberta King also comfortably accommodates co-sleeping families and allows the room to move around or stretch in bed. However, it is also one of the least commonly produced beds and may be difficult to find.

Wyoming King Mattress

Wyoming king bed

Wyoming King is the smallest of the three square-shaped mattresses available in the market. It is 84 inches wide by 84 inches long. The Wyoming King bed is two feet (24 inches) smaller compared to the Alaskan King in width and length. Compared to a California king mattress, a Wyoming king bed is the same length but one foot (12 inches) wider, providing space for parents who co-sleep with a single child or a pet. Alternatively, Wyoming King also provides extra space for two adult sleepers.

The Wyoming king bed is also one of the oversized beds that would fit in a standard master bedroom, with more availability and lower prices than the other oversized mattresses.

Texas King Mattress

Texas King bed

A Texas king bed is longer than regular beds and is perfect for tall sleepers. Measuring 80 inches wide by 98 inches long, a Texas king is 8 inches wider and 14 inches longer than a California king bed. This bed can still fit a family of three quite comfortably. However, it is preferred mainly by tall sleepers and can also be a good option for families where pets sleep at the foot of the bed.

Texas King is a rectangular-shaped mattress, which can be a good option for bedrooms that are a bit narrow but would fit most master bedrooms comfortably while leaving ample space to move around.

Family Bed Mattresses

Family bed

Family beds come in three different sizes: XL family bed, large family bed, and medium family bed. Family beds are by far considered the largest mattress sizes; though they are not as long, they are the widest beds available in the market.

The XL family bed is an astonishing 144 inches wide by 84 inches long. Though as long as a California king, its width equals two California king mattresses side by side. XL family bed can easily fit a family of five along with pets. Though this bed sounds like heaven, it also requires an oversized bedroom to fit it. Moreover, it can be supported by either two California king-size box springs or a single extra-size box spring. Due to the large size, some companies also ship these custom-made 'beds in a box.'

A large family bed is 120 inches wide by 80 inches long. Though it is 4 inches smaller than a California king in length, it's four feet (48 inches) wider. A large family bed can also comfortably accommodate co-sleeping families who sleep with more than one child or pet.

A medium family bed measuring 108 inches by 80 inches is the smallest of the family beds and is 36 inches wider than a California king. This bed's width is equal to that of an Alaskan king bed and can easily fit families and their pets.

Gaining the title of some of the biggest beds, these family beds can only fit in big bedrooms. Due to the lack of availability in retail stores, you might also have to get them custom-made, and they would also require a custom-made bed frame and special bedding.

latex mattress

Choosing the Right Mattress Size - Factors to Consider

With so many options available in the market, it might seem like a huge task to choose one. Though your choice of mattress will always depend on your requirements and needs, these can be broken down into various factors to be considered while buying a mattress.

  • Bedroom Dimension

Bedroom Size measuring

First and foremost is the room size; when buying an oversized mattress, it should most definitely fit your bedroom. So, measure the space in your bedroom, and don't forget to account for other furniture in your room, like dressings or tables. Additionally, there should be around 2 feet of space on all sides of the bed for you to move around the room as well.

Oversized mattresses are designed to provide you with comfort, but squeezing in a big mattress in a smaller room might not be exactly comforting. The bedroom is a space where you come to unwind and relax after a day, and an overcrowded room can cause stress and might make it difficult for you to get good sleep.

You will have to balance your wants with some practical considerations; for some, getting an oversized mattress might be necessary; for instance, someone whose height is 7 feet would need a longer mattress and, despite room size, will have to bring in the mattress.

So, measure your bedrooms before considering which mattress size to purchase and decide accordingly.

  • Bed Frame

Bed frames

These oversized mattresses would most definitely not fit on your standard bed base, so you would need an oversized one. Usually, sizes this big are not to be found in regular bed stores. Therefore, you might have to get it custom-made or purchase it along with the mattress.

Also, when measuring your room, keep in account the extra few inches that the bed frame would occupy. Measure and re-measure your room before buying anything to make sure it would fit.

  • Number of Sleepers

Family co sleeping in bed

The number of people sharing a bed is also one of the most important factors to consider when choosing a bed. If it's two people who just need a little more space, they might wanna go for a Texas king bed, while if the bed is meant to be shared by a family of 4, they might want to choose Alberta or Alaskan depending on each person's sleep orientation. If the family also has pets who co-sleep, they might want to go for a family bed.

Consideration of the number of sleepers, along with their sleep orientation and habits, should be able to give a good idea of which bed size would be more suitable for you.

  • Sleeper's Height

Tall person sleeping on bed

If you're a tall person, or your partner is, then investing in a rectangular-shaped bed whose length is more makes more sense. Some of the oversized beds would leave you ample space at the foot of the bed even when a tall individual is using it, while some mattresses might not even give space for you to fully stretch out.

For instance, if considering a family bed, you should also consider that its length is only 80 or 84 inches, which might not be that comfortable for very tall sleepers. So, when buying a mattress, keep in mind the length of the mattress that you require to sleep comfortably.

  • Sleeping Positions

Someone Diagonally sleeping on bed

It's very important to consider how much you like to stretch around while sleeping, and the same goes for any co-sleeping individuals as well. If you like to curl up, then maybe the length of the mattress wouldn't be that important to you. Similarly, if you like to sleep diagonally, you would need beds with extra width.

So, considering everyone's sleeping patterns and positions would give a decent idea of how much space a person would occupy and help you choose the right mattress size.

  • Versatility

Versatility

Oversized mattresses are designed to cater to a variety of sleeping arrangements, making them adaptable to different needs. However, you would still need to weigh in a lot of things while buying an oversized mattress.

For instance, if you have a growing child, you might want to buy a size larger than what you need right now because mattresses are a long-term investment, and you need to think futuristically while buying them.

  • Accessories

Bed sheets and comforters

Oversized mattresses are found only in some retailers, and their accessories are even fewer. It is difficult to find oversized bed accessories like sheets or mattress pads because most companies don't keep them in stock. You might even have to get custom bedding.

These days, it has got a little easier to find these accessories online. However, you still need to keep in mind the cost. Oversized bed accessories can be quite expensive.

  • Transport

Delivering a mattress

Oversized mattresses are huge and heavy, so getting them placed in your room would be quite a task. We must also consider whether the mattress would fit through doorways and stairways. If your mattress is coming in one piece, it might be very challenging to get it to your room. The delivery would also require multiple people to get it around and about and can be quite expensive.

Also, if, in the future, you want to change the layout of your room, oversized mattresses can pose an issue. The size might not allow you to change the layout, and even if it does, you would need to call services to move it around.

  • Budget

Mattress budget

Once you know your needs and all the mattresses, it's time to take a step back and set a budget for yourself. Since oversized mattresses are so large, they use a lot of extra material. And due to their limited availability, they can cost quite a bit more than their standard counterparts. Also, it would cost even more for their shipping and delivery.

Moreover, along with an oversized bed, you would need to get bed frames, accessories, and foundation for that mattress, which would further expand the budget. So, consider financial planning when thinking of buying an oversized mattress.

natural and organic latex mattress topper

FAQs

1. Is a queen-size mattress the biggest bed size?

No, the queen mattress is not the biggest bed size. A queen is 60 inches wide by 80 inches long and is nowhere close to the biggest bed size. There are a lot of mattresses that are larger than a queen mattress. King beds (76 inches by 80 inches), California king (72 inches by 84 inches), and Olympic queen mattresses (66 inches by 80 inches) are a few mattresses that are larger than a queen in standard mattresses. Apart from that, all the oversized mattresses are larger than a queen bed.

2. Which mattress size is the biggest?

The biggest mattress size is Alaskan king, measuring 108 inches wide by 108 inches long. Alaskan King is the largest square bed and also the largest in terms of length. However, in terms of width, the Family XL bed is the largest, measuring 144 inches wide but only 84 inches long. So, when considering the biggest bed size, it's important to know which is the determining factor for you: length or width.

3. Where can I buy an oversized mattress?

Oversized mattresses are hard to find in regular stores, but you can find them at some retailers who do custom orders. Another convenient way is to browse online sellers. A lot of retailers sell oversized mattresses online; you can simply look for the size you want and check it out online. Some online sellers also provide detailed size guides, room planners, and customer support to help you pick the right size.

4. Where can I buy sheets and other accessories for an oversized mattress?

Just like mattresses, their accessories are also hard to find. Some mattress sellers also sell their accessories, so you can shop them together. You can also shop for them online; there are various sellers who sell oversized bed sheets and other accessories. However, they might take longer to deliver because mostly oversized mattress accessories are custom order-based.

natural and organic pillows

Related blog posts:

1. Types of Beds

60 Different Types of Beds

2. How to Break in a New Mattress?

3. Mattress Disposal

Mattress Disposal

4. Best Time to Buy a Mattress

When Is the Best Time to Buy a Mattress?

5. Wyoming King vs Alaskan King vs Texas King

Mattress Sizes Chart and Bed Dimensions Guide

Disclaimer: What is said in this article has been referenced from multiple sources and is intended only for educational and informational purposes. Please note that no content in this article is a substitute for professional advice from a qualified doctor or healthcare provider. Always consult an experienced doctor with any concerns you may have regarding a health condition or treatment, and never disregard any medical suggestions or delay in seeking treatment because of something you read here.

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